:root {
  --blue: #246bfe;
  --blue-dark: #1052ea;
  --blue-soft: #eaf1ff;
  --bg: #f4f7fe;
  --ink: #16213a;
  --muted: #68748a;
  --line: #dbe5f4;
  --panel: #ffffff;
  --footer: #2e3037;
  --shadow: 0 18px 45px rgba(34, 73, 128, 0.1);
  --max: 1040px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: #fff;
  color: var(--ink);
  font-family:
    Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  width: 100%;
  padding: 17px max(18px, calc((100% - var(--max)) / 2 + 18px));
  border-bottom: 1px solid transparent;
  background: transparent;
  color: #23304a;
  transition:
    top 0.24s ease,
    padding 0.24s ease,
    background-color 0.24s ease,
    border-color 0.24s ease,
    box-shadow 0.24s ease,
    backdrop-filter 0.24s ease;
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  top: 0;
  padding-top: 12px;
  padding-bottom: 12px;
  border-bottom-color: rgba(202, 215, 239, 0.75);
  background: rgba(244, 247, 254, 0.92);
  box-shadow: 0 8px 22px rgba(36, 77, 140, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-logo {
  height: 45px;
  width: auto;
}

.brand-mark {
  position: relative;
  display: inline-block;
  width: 20px;
  height: 18px;
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  content: "";
  border-style: solid;
}

.brand-mark::before {
  top: 0;
  left: 0;
  border-width: 0 10px 18px;
  border-color: transparent transparent var(--blue);
}

.brand-mark::after {
  top: 5px;
  left: 6px;
  border-width: 0 4px 7px;
  border-color: transparent transparent #88b4ff;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #3b4761;
  font-size: 13px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
  transition:
    color 0.18s ease,
    background-color 0.18s ease;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 1px;
  left: 0;
  height: 2px;
  border-radius: 99px;
  background: var(--blue);
  content: "";
  opacity: 0;
  transform: scaleX(0.55);
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  background: transparent;
  color: var(--blue);
}

.site-nav a.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-nav .btn-register {
  padding: 8px 18px;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  transition: background-color 0.18s ease;
}

.site-nav .btn-register::after {
  display: none;
}

.site-nav .btn-register:hover {
  background: var(--blue-dark);
  color: #fff;
}

.btn-register-mobile {
  display: none;
  order: 2;
  margin-left: auto;
  margin-right: 10px;
}

.nav-toggle {
  display: none;
  width: 38px;
  height: 34px;
  border: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 99px;
  background: var(--ink);
}

.section-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  position: relative;
  padding: 112px 0 118px;
  background: var(--blue-soft);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(430px, 1.18fr);
  gap: 46px;
  align-items: center;
}

.hero-copy {
  padding-top: 18px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 520px;
  margin-bottom: 18px;
  font-size: 50px;
  line-height: 1.05;
  font-weight: 850;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: 30px;
  line-height: 1.22;
  font-weight: 850;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 9px;
  font-size: 17px;
  line-height: 1.35;
  font-weight: 820;
}

.hero-lead {
  max-width: 510px;
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 850;
  transition:
    transform 0.2s ease,
    background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--blue-dark);
}

.btn-ghost {
  background: #fff;
  color: var(--blue);
}

.btn-light {
  background: #fff;
  color: var(--blue);
}

.hero-art {
  position: relative;
}

.hero-art::before {
  position: absolute;
  inset: 12% 4% 0 12%;
  z-index: 0;
  border-radius: 42px;
  background: #dce8ff;
  content: "";
  transform: rotate(-3deg);
}

.hero-art img {
  position: relative;
  z-index: 1;
  width: 100%;
  filter: drop-shadow(0 24px 34px rgba(50, 91, 150, 0.14));
}

.slant-bottom::after,
.slant-top::before {
  position: absolute;
  right: 0;
  left: 0;
  height: 84px;
  content: "";
  pointer-events: none;
}

.slant-bottom::after {
  bottom: -1px;
  background: #fff;
  clip-path: polygon(0 68%, 100% 0, 100% 100%, 0 100%);
}

.slant-top {
  position: relative;
}

.slant-top::before {
  top: -1px;
  background: #fff;
  clip-path: polygon(0 0, 100% 0, 100% 28%, 0 100%);
}

.connect-section {
  padding: 78px 0 92px;
  background: #fff;
}

.connect-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 220px;
  gap: 34px;
  align-items: center;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: 14px;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 25px;
}

.check-list li::before {
  position: absolute;
  top: 3px;
  left: 0;
  display: grid;
  width: 16px;
  height: 16px;
  place-items: center;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  content: "✓";
  font-size: 10px;
  font-weight: 900;
}

.line-art {
  position: relative;
  min-height: 160px;
}

.node {
  position: absolute;
  display: block;
  width: 44px;
  height: 44px;
  border: 2px solid #78a6ff;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 20px rgba(36, 107, 254, 0.1);
}

.node::after {
  position: absolute;
  inset: 12px;
  border-radius: 8px;
  background: #78a6ff;
  content: "";
}

.node-a {
  top: 12px;
  left: 88px;
}

.node-b {
  top: 64px;
  left: 18px;
}

.node-c {
  right: 26px;
  bottom: 20px;
}

.node-d {
  right: 82px;
  top: 30px;
}

.wire {
  position: absolute;
  height: 2px;
  background: #a8c3ff;
  transform-origin: left center;
}

.wire-a {
  top: 76px;
  left: 60px;
  width: 96px;
  transform: rotate(-23deg);
}

.wire-b {
  top: 74px;
  left: 118px;
  width: 96px;
  transform: rotate(23deg);
}

.wire-c {
  top: 108px;
  left: 72px;
  width: 120px;
  transform: rotate(5deg);
}

.pale-section {
  position: relative;
  padding: 112px 0 102px;
  background: var(--bg);
}

.section-title {
  max-width: 660px;
  margin-bottom: 34px;
}

.section-title.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-title p {
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card {
  min-height: 218px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(34, 73, 128, 0.06);
}

.feature-card p,
.entry-grid p,
.story-copy p,
.faq-list p,
.blue-cta p {
  color: var(--muted);
}

.feature-icon {
  display: block;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border: 2px solid #78a6ff;
  border-radius: 14px;
  background: linear-gradient(135deg, #fff, #edf4ff);
}

.product-icon {
  box-shadow: inset 13px 13px 0 #dbe8ff;
}

.voucher-icon {
  border-color: #6ed0b4;
  box-shadow: inset 0 -14px 0 #dff8ef;
}

.order-icon {
  box-shadow: inset 0 0 0 10px #e8f0ff;
}

.member-icon {
  border-color: #ffbe63;
  box-shadow: inset 12px 0 0 #fff1d9;
}

.subsite-icon {
  box-shadow:
    inset 9px 9px 0 #dbe8ff,
    inset -9px -9px 0 #f2f6ff;
}

.finance-icon {
  border-color: #6ed0b4;
  box-shadow: inset 0 0 0 6px #e5fbf3;
}

.story-section {
  padding: 98px 0;
  background: #fff;
}

.story-stack {
  display: grid;
  gap: 80px;
}

.story-row {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 50px;
  align-items: center;
}

.story-row-reverse .story-copy {
  order: 2;
}

.story-row-reverse .exchange-illustration {
  order: 1;
}

.story-copy {
  max-width: 460px;
}

.story-art,
.exchange-illustration,
.subsite-map {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow);
}

.card-window {
  overflow: hidden;
}

.exchange-illustration {
  position: relative;
  min-height: 360px;
  background:
    radial-gradient(circle at 35% 40%, #eef4ff 0 120px, transparent 121px),
    #fff;
}

.phone-card,
.coupon-card {
  position: absolute;
  border: 2px solid #93b6ff;
  background: #fff;
  box-shadow: 0 18px 32px rgba(34, 73, 128, 0.1);
}

.phone-card {
  top: 58px;
  left: 74px;
  width: 138px;
  height: 238px;
  padding: 28px 18px;
  border-radius: 26px;
}

.phone-card span {
  display: block;
  height: 16px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: #dbe8ff;
}

.phone-card span:first-child {
  height: 56px;
  background: var(--blue);
}

.coupon-card {
  right: 70px;
  bottom: 68px;
  width: 220px;
  height: 124px;
  padding: 26px;
  border-radius: 16px;
}

.coupon-card b {
  display: block;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 26px;
}

.coupon-card i {
  display: block;
  height: 12px;
  margin-bottom: 12px;
  border-radius: 999px;
  background: #dbe8ff;
}

.arrow-line {
  position: absolute;
  top: 178px;
  left: 220px;
  width: 190px;
  height: 3px;
  background: #93b6ff;
  transform: rotate(19deg);
}

.arrow-line::after {
  position: absolute;
  right: -4px;
  top: -5px;
  width: 12px;
  height: 12px;
  border-top: 3px solid #93b6ff;
  border-right: 3px solid #93b6ff;
  content: "";
  transform: rotate(45deg);
}

.subsite-map {
  padding: 42px;
  text-align: center;
}

.org-node,
.org-branches span,
.org-cards span {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: #3e4b64;
  font-size: 13px;
  font-weight: 800;
}

.main-node {
  width: 140px;
  margin-bottom: 42px;
  border-color: #93b6ff;
  color: var(--blue);
}

.org-branches,
.org-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.org-cards {
  grid-template-columns: repeat(3, 1fr);
}

.entry-section {
  padding-top: 104px;
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.entry-grid article {
  min-height: 198px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.module-section {
  padding: 96px 0;
  background: #fff;
}

.module-board {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.module-root {
  display: inline-flex;
  min-width: 132px;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  border: 1px solid #93b6ff;
  border-radius: 14px;
  background: #fff;
  color: var(--blue);
  font-weight: 850;
  box-shadow: var(--shadow);
}

.module-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.module-columns article {
  display: grid;
  gap: 9px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  text-align: left;
}

.module-columns span {
  display: block;
  padding: 8px 10px;
  border-radius: 8px;
  background: #f5f8ff;
  color: #536079;
  font-size: 13px;
}

.compare-section {
  padding-top: 96px;
}

.compare-table {
  overflow: hidden;
  max-width: 840px;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.compare-row {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  min-width: 680px;
  border-bottom: 1px solid var(--line);
}

.compare-row:last-child {
  border-bottom: 0;
}

.compare-row span,
.compare-row b,
.compare-row i {
  padding: 17px 18px;
  border-right: 1px solid var(--line);
  font-size: 14px;
  font-style: normal;
}

.compare-row span:last-child,
.compare-row b:last-child,
.compare-row i:last-child {
  border-right: 0;
}

.compare-head {
  background: #f6f9ff;
  font-weight: 850;
}

.compare-row b {
  color: #18b57d;
}

.compare-row i {
  color: #ef5b5b;
}

.faq-section {
  padding: 90px 0;
  background: #fff;
}

.faq-wrap {
  max-width: 760px;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.faq-list summary {
  position: relative;
  display: block;
  padding: 18px 38px 18px 0;
  color: #29364f;
  font-weight: 780;
  cursor: pointer;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  position: absolute;
  top: 18px;
  right: 8px;
  color: #7b879a;
  content: "⌄";
}

.faq-list details[open] summary::after {
  transform: rotate(180deg);
}

.faq-list p {
  margin-bottom: 18px;
  font-size: 14px;
}

.blue-cta {
  padding: 64px 0;
  background: var(--blue);
  color: #fff;
  text-align: center;
}

.blue-cta h2 {
  margin-bottom: 10px;
}

.blue-cta p {
  margin-bottom: 22px;
  color: #dfe8ff;
}

.site-footer {
  padding: 44px 0 0;
  background: var(--footer);
  color: #fff;
}

.footer-inner {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.footer-info {
  display: grid;
  align-content: start;
  gap: 18px;
}

.footer-brand .brand-mark::before {
  border-color: transparent transparent #4b7cff;
}

.footer-contact {
  display: grid;
  gap: 7px;
  color: #aab0bd;
  font-size: 12px;
  line-height: 1.65;
}

.footer-contact p {
  margin: 0;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.footer-cols h3 {
  margin-bottom: 12px;
  color: #fff;
  font-size: 13px;
}

.footer-cols a {
  display: block;
  margin-bottom: 8px;
  color: #aab0bd;
  font-size: 12px;
}

.footer-cols a:hover {
  color: #fff;
}

.footer-beian {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  width: min(var(--max), calc(100% - 40px));
  margin: 16px auto 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #8f96a5;
  font-size: 12px;
  line-height: 1.4;
  text-align: center;
}

.footer-beian.is-hidden {
  display: none;
}

.footer-beian a {
  color: inherit;
}

.footer-beian a:hover {
  color: #d8dde8;
}

@media (max-width: 980px) {
  .hero-grid,
  .connect-grid,
  .story-row,
  .story-row-reverse,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .story-row-reverse .story-copy,
  .story-row-reverse .exchange-illustration {
    order: initial;
  }

  .feature-grid,
  .entry-grid,
  .module-columns {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    padding-top: 100px;
  }

  h1 {
    font-size: 42px;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding-right: 15px;
    padding-left: 15px;
  }

  .nav-toggle {
    display: block;
  }

  .btn-register-mobile {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 14px;
    border-radius: 6px;
    background: var(--blue);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
    transition: background-color 0.18s ease;
  }

  .btn-register-mobile:hover {
    background: var(--blue-dark);
  }

  .nav-toggle {
    order: 3;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 10px 24px rgba(36, 77, 140, 0.1);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
    text-align: center;
  }

  .site-nav .btn-register {
    display: none;
  }

  .site-nav a::after {
    right: 12px;
    bottom: 7px;
    left: 12px;
  }

  .section-inner {
    width: calc(100% - 30px);
  }

  .hero {
    padding: 92px 0 92px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 25px;
  }

  .hero-grid {
    gap: 28px;
  }

  .hero-actions {
    display: grid;
  }

  .btn {
    width: 100%;
  }

  .pale-section,
  .story-section,
  .module-section,
  .faq-section {
    padding: 72px 0;
  }

  .feature-grid,
  .entry-grid,
  .module-columns,
  .org-branches,
  .org-cards,
  .footer-cols {
    grid-template-columns: 1fr;
  }

  .exchange-illustration {
    min-height: 310px;
  }

  .phone-card {
    left: 28px;
    width: 116px;
  }

  .coupon-card {
    right: 24px;
    width: 172px;
  }

  .arrow-line {
    left: 150px;
    width: 120px;
  }

  .compare-table {
    overflow-x: auto;
  }

  .brand-logo {
    height: 42px;
  }
}